[Q] The Verizon Nexus and VoLTE? - Samsung Galaxy Nexus

Verizon has a Voice over LTE system coming out in the next year(according to them). That would allow the LTE radio to not just be used for sweet delicious data, but be used for voice(minutes?) too. Is this something that the current Galaxy Nexus will be capable of in the future via firmware update? This would solve some of the battery draining problems related to using a LTE phone. It would suck burro pene having a relatively new LTE phone and not be able to use Verizon's forthcoming VoLTE platform in a few months, if there is a huge benefit from it.

Pacifik said:
Verizon has a Voice over LTE system coming out in the next year(according to them). That would allow the LTE radio to not just be used for sweet delicious data, but be used for voice(minutes?) too. Is this something that the current Galaxy Nexus will be capable of in the future via firmware update? This would solve some of the battery draining problems related to using a LTE phone. It would suck burro pene having a relatively new LTE phone and not be able to use Verizon's forthcoming VoLTE platform in a few months, if there is a huge benefit from it.
Click to expand...
Click to collapse
I don't see how using LTE for voice AND data will make battery life any better.

Chirality said:
I don't see how using LTE for voice AND data will make battery life any better.
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Click to collapse
turn off the CDMA radio completely?

crazy talk said:
turn off the CDMA radio completely?
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Click to collapse
The LTE radio is the one that burns the battery, not the CDMA radio. So once you start doing voice and data both over LTE its gonna rape the battery lol.

Currently you get a call it's handed off to the CDMA antenna. When on LTE both the CDMA for voice and LTE for data are on. Whereas with VoLTE while on LTE there is no hand off, therefore no secondary voice antenna needs to be on as the LTE handles it.

Pacifik said:
Currently you get a call it's handed off to the CDMA antenna. When on LTE both the CDMA for voice and LTE for data are on. Whereas with VoLTE while on LTE there is no hand off, therefore no secondary voice antenna needs to be on as the LTE handles it.
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Click to collapse
That's not true at all. When the CDMA radio is on for voice communication it turns *off* the LTE radio. We know this because voice and data at the same time are not possible on most LTE phones.
If you used the LTE radio for voice communication, as well as data, it would *completely* destroy your battery life.

hotleadsingerguy said:
That's not true at all. When the CDMA radio is on for voice communication it turns *off* the LTE radio. We know this because voice and data at the same time are not possible on most LTE phones.
If you used the LTE radio for voice communication, as well as data, it would *completely* destroy your battery life.
Click to expand...
Click to collapse
On Verizon LTE phones you can 100% definitely use 4g data while on 3g voice, most can't do 3g simultaneous voice and data. While LTE ants use more power, powering up a second antenna while already using the LTE will hurt even more. There will also be usually be an increase in call quality on an LTE call. All of this is under the assumption you actually plan on using the 4G network.

Important question that needs an answer
I too am considering getting the new Galaxy Nexus on VZ. The battery issue I find secondary to my main concern, but it should be obvious that using only one radio (LTE) will have power saving benefits vs two radios. If just using voice, it may be a net loss of battery life. I guess we'll see how LTE stacks up to CDMA power consumption.
But here is the important question: will the SGN be upgradeable to support VoLTE (Voice over LTE) and the accompanying high-definition audio codec AMR-WB. You see, your horrible-sounding cell calls will transform to sounding better than a land line (assuming, of course, a compatible phone on the other end). It is even conceivable one could call VoIP landlines that support this codec and get good audio quality.
So you see, it is really all about the audio quality. Battery life is secondary, and may go up or down depending on your useage of voice only or voice and data.

[email protected] said:
I too am considering getting the new Galaxy Nexus on VZ. The battery issue I find secondary to my main concern, but it should be obvious that using only one radio (LTE) will have power saving benefits vs two radios. If just using voice, it may be a net loss of battery life. I guess we'll see how LTE stacks up to CDMA power consumption.
But here is the important question: will the SGN be upgradeable to support VoLTE (Voice over LTE) and the accompanying high-definition audio codec AMR-WB. You see, your horrible-sounding cell calls will transform to sounding better than a land line (assuming, of course, a compatible phone on the other end). It is even conceivable one could call VoIP landlines that support this codec and get good audio quality.
So you see, it is really all about the audio quality. Battery life is secondary, and may go up or down depending on your useage of voice only or voice and data.
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Click to collapse
If the wideband voice codec is implemented in hardware, then sure it can be a software upgrade. Otherwise its up to the CPU to do all the processing which isn't ideal. Still could be done though, just not in an optimal fashion.

the downsides outweigh the very small benefits. yeah, just using a lte antenna and turning off cdma will net you a small gain, but having lte on 24/7 will burn through the battery quickly and using it for voice just to gain a little clarity will still burn through the battery, just now you're using more power compared to cdma voice. nice try though.

pukemon said:
the downsides outweigh the very small benefits. yeah,
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Then get a CDMA phone and keep having your phone conversations in low-def. Each to their own.
Personally, I absolutely despise cellphone audio quality (what? What did you say?) and will gladly burn a few extra milliamps, if indeed there is much of a penalty, for the few minutes I am actually talking on the phone.
---------- Post added at 04:41 PM ---------- Previous post was at 04:37 PM ----------
aadvanced1 said:
If the wideband voice codec is implemented in hardware, then sure it can be a software upgrade. Otherwise its up to the CPU to do all the processing which isn't ideal. Still could be done though, just not in an optimal fashion.
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My understanding is that the voice codec must be in the modem firmware. Supposedly, from what I have read on the internet, the SGN uses the same SGS Thomson modem as the Samsung Galaxy II, which is capable of VoLTE. Again, reading on the internet, VZ has specifically asked Samsung (this was noted in the FCC filing) to ship it without VoLTE, presumably for better compatibility with their network today.
So, the million dollar question is: Is this just a firmware upgrade to enable when VoLTE goes live on VZ? Pretty sure modem firmware is different from Android OS. Not sure if it is upgradeable after the fact. Is this what is commonly refered to as "baseband firmware"?
Does anybody know more about the guts of these phones?

pass. i'll stick to gsm for a while longer. much longer. much better on the battery, call quality is satisfactory and i can travel with it. when lte power consumption is comparable to that of current hspa/cdma radios i might consider switching. until then i'm going to try and make my nexus last a couple years.

[email protected] said:
Then get a CDMA phone and keep having your phone conversations in low-def. Each to their own.
Personally, I absolutely despise cellphone audio quality (what? What did you say?) and will gladly burn a few extra milliamps, if indeed there is much of a penalty, for the few minutes I am actually talking on the phone.
Click to expand...
Click to collapse
Totally agreed. Going from a cell conversation to a Skype to Skype call makes you realize how undescribably bad cell voice quality is.

here's the million dollar question: With voLTE, can I simultaneously use voice and data over 4g?

Pacifik said:
Verizon has a Voice over LTE system coming out in the next year(according to them). That would allow the LTE radio to not just be used for sweet delicious data, but be used for voice(minutes?) too. Is this something that the current Galaxy Nexus will be capable of in the future via firmware update? This would solve some of the battery draining problems related to using a LTE phone. It would suck burro pene having a relatively new LTE phone and not be able to use Verizon's forthcoming VoLTE platform in a few months, if there is a huge benefit from it.
Click to expand...
Click to collapse
It's a really good question. If I had to bet, I'd say yes. I'd bet they've got Samsung putting the codec into the modem firmware already. I'd bet their 4G device testing already includes VoLTE IMS along with one or two production test markets for VZW field testing. I think the odds are good. That said, they don't exactly advertise on the box:
"Supports VoLTE so in about 9 months your battery life won't completely suck and maybe you'll get HD audio if you're seriously lucky."
Samzebian said:
here's the million dollar question: With voLTE, can I simultaneously use voice and data over 4g?
Click to expand...
Click to collapse
Yes. You should be able to do this even without VoLTE using 3G voice and 4G data. Different radios.

Samzebian said:
here's the million dollar question: With voLTE, can I simultaneously use voice and data over 4g?
Click to expand...
Click to collapse
Voice over LTE treats the call as data, it's the same thing as a voip call essentially.

Related

[Q] Why can't we use data during a call?

So I was downloading AA V7 from my phone. Since I was at work. I started about 6 20 pm. On a 100% battery. Around 8 20 pm with a 28 % battey I was at 96% when I got a phone call and canceled my download. Why o why. Damn u sprint. Does any one know if 4g will stay connected while your in a call?
Sent from my fake Nexus S 4G using XDA Premium App
notsosmrtgeek said:
So I was downloading AA V7 from my phone. Since I was at work. I started about 6 20 pm. On a 100% battery. Around 8 20 pm with a 28 % battey I was at 96% when I got a phone call and canceled my download. Why o why. Damn u sprint. Does any one know if 4g will stay connected while your in a call?
Sent from my fake Nexus S 4G using XDA Premium App
Click to expand...
Click to collapse
Cdma will not allow data and calling its a network thing...a no no but 4g works I tested it before and it works no problem
Sent from my SPH-D700 using XDA App
Thanks. I don't get 4g at my work but in my town there is. but I will just dl it later. Damn sprint
Sent from my fake Nexus S 4G using XDA Premium App
I feel your pain
Sent from my SPH-D700 using XDA Premium App
You can use wifi while on a call
rulyskull said:
Cdma will not allow data and calling its a network thing...a no no but 4g works I tested it before and it works no problem
Sent from my SPH-D700 using XDA App
Click to expand...
Click to collapse
I know, why doesn't Sprint advertise that fact? I've found myself surprised when I get a call while doing interweb things and everything continues as is. By the way, I think HBO GO thinks 4g=wifi.
And that's why GSM is so much better...
SIM cards > ESN
Data and voice simultaneously? Yes please.
IIRC it's frequencies penetrate buildings better as well.
I normally have wifi on at home because I am in between. Areas at my apt so I knew about the wifi but there is always a negative fml. But at home time for some v7. I have about 30 pages to catch up on heheheh.
Sent from my fake Nexus S 4G using XDA Premium App
I was able to take a call and use data..I have Sprint. I was in a 4G area. Voice and data shouldnt be a problem at the same time. I had an Adobe connect going. Never lost connection and I was using wired tether..I am rooted. But no issues
Sent from my Swagurious Evo...
I have googled something while on a phone call without 4G or wifi. Heavy traffic stops or crawls so much you may think it doesn't work or timeouts.
Kal*El said:
I was able to take a call and use data..I have Sprint. I was in a 4G area. Voice and data shouldnt be a problem at the same time. I had an Adobe connect going. Never lost connection and I was using wired tether..I am rooted. But no issues
Sent from my Swagurious Evo...
Click to expand...
Click to collapse
Okay everyone, let me teach you a little something. AT&T and T-Mobile both allow you to use data while on a call, why is that? It is actually because, back in the days before data, AT&T used ONLY GSM radio frequencies. These were perfect for phone calls and texting, but once data connections were required, their network couldn't handle it.
However, Sprint and Verizon were fine, because they used CDMA, a network that allows them to handle voice and data on the same frequency.
GSM providers were sad, so to fix it, they added a CDMA frequency to their arsenal. This means, they use two frequencies at the same time a GSM frequency to handle calls and text, and a CDMA frequency to handle data. So while you are on a call, the CDMA frequency is still free, hence the talk and web simultaneously.
Sprint and Verizon, however use CDMA for everything, so when you make a phone call, the network is being used. So data can't also get through. But 4G is yet another frequency so that can be used at the same time as a phone call.
Does this make sense?
Also, while GSM can penetrate buildings better, it is also much less reliable. It's large wavelengths allow it to travel through walls better, but also cause the dredded dropped calls that AT&T experience so much. I'll take CDMA over GSM everyday of the week. Besides, other then the rare occasion in which we are downloading (though we should never download something that big over 3G) we don't NEED talk and data at the same time.
The Root said:
I know, why doesn't Sprint advertise that fact? I've found myself surprised when I get a call while doing interweb things and everything continues as is. By the way, I think HBO GO thinks 4g=wifi.
Click to expand...
Click to collapse
Why would sprint advertise a flaw. That's why att advertises that they can talk and surf with the iphone duh
i know it doesnt work and it takes forever. but i am a flashaholic and damn it sucks when i go to work and the rom i have been waiting for gets released
There are a bunch of errors here.
CDMA can do Voice and data at the same time. Verison did not want that, and as the largest CDMA company, every one stopped developing new and better protocols and by default standardized on the Verizon way.
But not all Dev stopped. Outside North America there are several CDMA carriers that use EVDV? and other protocols that allow simultaneous Voice data connections on their frequencies. I believe Russia does on their 450MHz system. In fact these protocols are built in to any newer phone and all new tower equipment, but has not been implemented. Some have suggested when Sprint finishes their soft radio upgrade, they may offer it on a new phone.
Censura_Umbra had much good info, but it is not NECESSARY, from a tech point of view to have two different frequencies to do voice and data. It has been suggested that ATT wanted TWO separate systems for voice and data, as that is how big telcos are. I find this accurate.
One should also note that there are SIM CDMA phones. SIM is a separate tech entirely. North American Vendors do not use SIM cards to protect there handset hardware revenue streams. It is also why they lobbied so hard to try to get ESN modification illegal.
Final point. There are plenty who complain about frequency penetration.
1) While lower frequencies do penetrate things better, and thus may have more cancer risk
2) They also take more power to create. Thus reducing phone life.
3) Frequency attenuation do to penetration is predictable. With modern protocols, data rates can be unaffected. These things are not being implemented do to the FAT revenue streamed on handsets.
I'm not sure what everyone is talking about, I use 3G a lot while on calls.
Censura_Umbra said:
Okay everyone, let me teach you a little something. AT&T and T-Mobile both allow you to use data while on a call, why is that? It is actually because, back in the days before data, AT&T used ONLY GSM radio frequencies. These were perfect for phone calls and texting, but once data connections were required, their network couldn't handle it.
However, Sprint and Verizon were fine, because they used CDMA, a network that allows them to handle voice and data on the same frequency.
GSM providers were sad, so to fix it, they added a CDMA frequency to their arsenal. This means, they use two frequencies at the same time a GSM frequency to handle calls and text, and a CDMA frequency to handle data. So while you are on a call, the CDMA frequency is still free, hence the talk and web simultaneously.
Sprint and Verizon, however use CDMA for everything, so when you make a phone call, the network is being used. So data can't also get through. But 4G is yet another frequency so that can be used at the same time as a phone call.
Does this make sense?
Also, while GSM can penetrate buildings better, it is also much less reliable. It's large wavelengths allow it to travel through walls better, but also cause the dredded dropped calls that AT&T experience so much. I'll take CDMA over GSM everyday of the week. Besides, other then the rare occasion in which we are downloading (though we should never download something that big over 3G) we don't NEED talk and data at the same time.
Click to expand...
Click to collapse
I'm very well versed in gsm cdma and tdma networks....voice and data at the same time will depend on a personal preference. I enjoyed using it bc I do meetings on the go. Sprint's network will allow that.
Ppl are getting confused with 3G...bc they assume since ATT has this that all carriers should have it..4G allows this.....
Sent from my Swagurious Evo...

Is it normal to lose data when receiving a phone call. I've been using HTC devices fo

sent from my tired mind
No CDMA device transmits data and cellular at the same time.
063_XOBX said:
No CDMA device transmits data and cellular at the same time.
Click to expand...
Click to collapse
I believe it is LTE devices that will not lose data. CDMA only devices WILL lose data when on a phone call. Am I incorrect?
Do I need to have my intentional misinformation detector sent in for service?
WiredPirate said:
I believe it is LTE devices that will not lose data. CDMA only devices WILL lose data when on a phone call. Am I incorrect?
Do I need to have my intentional misinformation detector sent in for service?
Click to expand...
Click to collapse
The technology in LTE networks doesn't handle voice transmissions it only does data. So when you place a phone call on LTE it’s actually rolling back to the carrier’s older network to use CDMA tech to make the call.
I'm on Verizon and I can do both at the same time. I just tested it.
Well I believe you answered my question about this particular device but just to be clear both my Evo 4G and my evo 4G LTE would maintain data connection while I was talking on the phone not in an LTE area
sent from my tired mind
firecaulk said:
Well I believe you answered my question about this particular device but just to be clear both my Evo 4G and my evo 4G LTE would maintain data connection while I was talking on the phone not in an LTE area
sent from my tired mind
Click to expand...
Click to collapse
No they didn't. You were either on Wifi or they in fact did lose their data. None of the CDMA data+voice protocols are enacted by any US carrier.
firecaulk said:
Well I believe you answered my question about this particular device but just to be clear both my Evo 4G and my evo 4G LTE would maintain data connection while I was talking on the phone not in an LTE area
sent from my tired mind
Click to expand...
Click to collapse
So you are on Sprint? It all depends on the carrier too, I believe. If I remember right, AT&T used to be the only one that could do that that I knew of. I switched to Verizon and realized they didn't have that capability. Then LTE came out and gave that feature to them. I dont know about any other carriers though.
Again let me explain there has been many times I have been using my phone as a hotspot device to watch movies on my ps3 and I would receive a phone call in the middle of the movie I would accept the phone call and keep watching the movie without a problem. There is no LTE in my area of Western Kentucky I am on Sprint with an exceptionally fast 3G connection , I was surprised to find that this device does not have the same capabilities
sent from my tired mind
firecaulk said:
Again let me explain there has been many times I have been using my phone as a hotspot device to watch movies on my ps3 and I would receive a phone call in the middle of the movie I would accept the phone call and keep watching the movie without a problem. There is no LTE in my area of Western Kentucky I am on Sprint with an exceptionally fast 3G connection , I was surprised to find that this device does not have the same capabilities
sent from my tired mind
Click to expand...
Click to collapse
If you used the Evo 4G it may have been connected to data via 4G, which is not the same as LTE. You can do the same with LTE being connected and voice calls. However it can't be done with 3g and voice as they use the same radio and like the above post says no US carriers have that technology. The only reason 4G and LTE works is becase they are data only on seperate radios. Of course it could have been magic.
G-Nexus Sent
firecaulk said:
Again let me explain there has been many times I have been using my phone as a hotspot device to watch movies on my ps3 and I would receive a phone call in the middle of the movie I would accept the phone call and keep watching the movie without a problem. There is no LTE in my area of Western Kentucky I am on Sprint with an exceptionally fast 3G connection , I was surprised to find that this device does not have the same capabilities
sent from my tired mind
Click to expand...
Click to collapse
Well I dont know then. All I know is that my Verizon Galaxy Nexus does both internet and calls at the same time with no issues.
I am posting this during an active call, with no 4g connection
Sent from my EVO using xda app-developers app
I'm just wondering why any download I'm attempting to make will stop whenever I receive a phone call with my Galaxy Nexus?
Sent from my EVO using xda app-developers app
firecaulk said:
I'm just wondering why any download I'm attempting to make will stop whenever I receive a phone call with my Galaxy Nexus?
Click to expand...
Click to collapse
Its not a difficult concept. Your data connection is being cut off because you're on a phone call. You might manage to post (something that can be done on even the slowest weakest connection) but something as intensive as downloading is always going to be interrupted.
063_XOBX is mostly correct.
the CDMA GN has a CDMA radio and a LTE radio. if you are not on LTE and you get a phone call, your data will shut off.
most HTC phones (esp the EVO) have a radio chip which allows data and voice at the same time as there are 2 CDMA radios in the phone.
Zepius said:
063_XOBX is mostly correct.
the CDMA GN has a CDMA radio and a LTE radio. if you are not on LTE and you get a phone call, your data will shut off.
most HTC phones (esp the EVO) have a radio chip which allows data and voice at the same time as there are 2 CDMA radios in the phone.
Click to expand...
Click to collapse
Thank you for your reply, I really love XDA community I knew I could count on somebody for the answer
sent from my tired mind
063_XOBX said:
No they didn't. You were either on Wifi or they in fact did lose their data. None of the CDMA data+voice protocols are enacted by any US carrier.
Click to expand...
Click to collapse
SVDO, while not officially supported, is alive and well. The Thunderbolt, Rezound, Incredible 4G, Viper, and Galaxy S3 on VZW are a handful of phones that are capable of simultaneous voice and 3G data.
Sent from my Nexus 7 using Tapatalk HD
063_XOBX said:
The technology in LTE networks doesn't handle voice transmissions it only does data. So when you place a phone call on LTE it’s actually rolling back to the carrier’s older network to use CDMA tech to make the call.
Click to expand...
Click to collapse
No, VoLTE is not yet available, hopefully soon. That is not what I was saying. LTE handles data during a call, and CDMA handles the voice. If you are not on LTE or WiFi, there will be no data while on the call.
063_XOBX said:
You were either on Wifi or they in fact did lose their data. None of the CDMA data+voice protocols are enacted by any US carrier.
Click to expand...
Click to collapse
You are correct if only taking about CDMA. Cant say for any other carrier, but 100% with VZW you can do simultaneous data/voice if you are in LTE coverage.
Zepius said:
063_XOBX is mostly correct.
the CDMA GN has a CDMA radio and a LTE radio. if you are not on LTE and you get a phone call, your data will shut off.
most HTC phones (esp the EVO) have a radio chip which allows data and voice at the same time as there are 2 CDMA radios in the phone.
Click to expand...
Click to collapse
THIS.
najaboy said:
SVDO,
Click to expand...
Click to collapse
thats the term i was looking for. thanks
Zepius said:
063_XOBX is mostly correct.
the CDMA GN has a CDMA radio and a LTE radio. if you are not on LTE and you get a phone call, your data will shut off.
most HTC phones (esp the EVO) have a radio chip which allows data and voice at the same time as there are 2 CDMA radios in the phone.
Click to expand...
Click to collapse
WiredPirate said:
No, VoLTE is not yet available, hopefully soon. That is not what I was saying. LTE handles data during a call, and CDMA handles the voice. If you are not on LTE or WiFi, there will be no data while on the call.
You are correct if only taking about CDMA. Cant say for any other carrier, but 100% with VZW you can do simultaneous data/voice if you are in LTE coverage.
THIS.
Click to expand...
Click to collapse
To correct something I saw on this thread (and to complement previous commentaries):
- LTE is considered to be a 4G technology
In March 2008, the International Telecommunications Union-Radio communications sector (ITU-R) specified a set of requirements for 4G standards, named the International Mobile Telecommunications Advanced (IMT-Advanced) specification, setting peak speed requirements for 4G service at 100 megabits per second (Mbit/s) for high mobility communication (such as from trains and cars) and 1 gigabit per second (Gbit/s) for low mobility communication (such as pedestrians and stationary users).[1]
Since the first-release versions of Mobile WiMAX and LTE support much less than 1 Gbit/s peak bit rate, they are not fully IMT-Advanced compliant, but are often branded 4G by service providers. On December 6, 2010, ITU-R recognized that these two technologies, as well as other beyond-3G technologies that do not fulfill the IMT-Advanced requirements, could nevertheless be considered "4G", provided they represent forerunners to IMT-Advanced compliant versions and "a substantial level of improvement in performance and capabilities with respect to the initial third generation systems now deployed".
Click to expand...
Click to collapse
- UMTS handles voice with a data call active at the same time.
Sent from my Nexus

[Q] Simultaneous Voice and Data without VoLTE?

Does the Verizon Note 4 allow simultaneous voice and data like the S5 and, basically, all prior android devices on Verizon? Or is it like the Droid Turbo / 2014 Moto X where it won't be doing voice/data at the same time until it receives the VoLTE update?
Yes i am sure it does...even the note 3 did.
Sent from my SM-N910V using XDA Free mobile app
art90262 said:
Yes i am sure it does...even the note 3 did.
Sent from my SM-N910V using XDA Free mobile app
Click to expand...
Click to collapse
I appreciate that, but the same can be said for the Droid Maxx and original X, and the new ones don't do it. Forgive me for being anal, but do you have one in hand or were you saying that just b/c of the Note 3?
jntdroid said:
Does the Verizon Note 4 allow simultaneous voice and data like the S5 and, basically, all prior android devices on Verizon? Or is it like the Droid Turbo / 2014 Moto X where it won't be doing voice/data at the same time until it receives the VoLTE update?
Click to expand...
Click to collapse
It does, I tried it.
Sent from my SM-N910V using Tapatalk 2
Voice and data at the same time have been available since Verizon brought out 4g LTE service. If you're in a LTE service area (most of the country with Verizon).... Then voice goes over the old CDMA network and data is on lte. And you can use both at the same time.
VoLTE is different, and is being rolled out to devices.
Sent From The Darkside Sucka's!
mwshows said:
Voice and data at the same time have been available since Verizon brought out 4g LTE service. If you're in a LTE service area (most of the country with Verizon).... Then voice goes over the old CDMA network and data is on lte. And you can use both at the same time.
VoLTE is different, and is being rolled out to devices.
Sent From The Darkside Sucka's!
Click to expand...
Click to collapse
Any idea when we can expect volte update?
mwshows said:
Voice and data at the same time have been available since Verizon brought out 4g LTE service. If you're in a LTE service area (most of the country with Verizon).... Then voice goes over the old CDMA network and data is on lte. And you can use both at the same time.
VoLTE is different, and is being rolled out to devices.
Sent From The Darkside Sucka's!
Click to expand...
Click to collapse
Only on Android devices (most, not all), and only because they built a "dual" antenna/radio setup on the snapdragon chipsets. But for whatever reason on the new X and Turbo, they went away from that. So the only way to have that function again is with the somewhat unreliable VoLTE.
Thanks for confirming the Note 4 still can...
Was going to say. I have been able to since s3 & first time was with HTC Thunderbolt
Pretty much since lte service
Moved to Q&A.
mwshows said:
Voice and data at the same time have been available since Verizon brought out 4g LTE service. If you're in a LTE service area (most of the country with Verizon).... Then voice goes over the old CDMA network and data is on lte. And you can use both at the same time.
VoLTE is different, and is being rolled out to devices.
Sent From The Darkside Sucka's!
Click to expand...
Click to collapse
Note: This is NOT true for the Motorola Droid Turbo. I have one. I'm returning it for several reasons, this being one. The only way to get simultaneous voice and data is VoLTE which isn't available on the Turbo yet.
I think all Samsung smartphones on Vzw does. Well, every 4G LTE Samsung... and HTC, right?
Sent from my SM-N910V using Tapatalk
---------- Post added at 08:51 AM ---------- Previous post was at 08:49 AM ----------
Daciple said:
Was going to say. I have been able to since s3 & first time was with HTC Thunderbolt
Pretty much since lte service
Click to expand...
Click to collapse
Yeah, some phones don't and I'm not sure why. Lower end phones don't either, like iphones for exemple
Sent from my SM-N910V using Tapatalk
The iPhone 6 do have volte but you have to enable it. The downside is that your voice quality could be impacted if your data connection sucked. Didn't sound like a feature that turns on/off automatically with all the warning messages it gave me.
boscoh said:
Note: This is NOT true for the Motorola Droid Turbo. I have one. I'm returning it for several reasons, this being one. The only way to get simultaneous voice and data is VoLTE which isn't available on the Turbo yet.
Click to expand...
Click to collapse
Wow I was not aware they still made phones that don't do voice/data at the same time!! Learn something new every day LOL. Thanks for the info though.... Good to know that kind of info.
Seriously who would make a phone that takes a step backwards....
Sent From The Darkside Sucka's!
cdmoore74 said:
The iPhone 6 do have volte but you have to enable it. The downside is that your voice quality could be impacted if your data connection sucked. Didn't sound like a feature that turns on/off automatically with all the warning messages it gave me.
Click to expand...
Click to collapse
And if your LTE hiccups, you lose your call completely...
Ah, iPhones! I remember having a Blackberry, they both have/had potential. Just lack on progressing in innovation & giving users opportunity to help them grow.
I see Windows phones being a bigger threat to Androids innovation & expansions sooner than Apple here before long. Can't just hold on to ideas, you run with them!
jntdroid said:
Does the Verizon Note 4 allow simultaneous voice and data like the S5 and, basically, all prior android devices on Verizon? Or is it like the Droid Turbo / 2014 Moto X where it won't be doing voice/data at the same time until it receives the VoLTE update?
Click to expand...
Click to collapse
Note Edge user here and I am really really trying to wrap my head around not being able to simultaneously talk and be on the net without voLTE.
I mean I can multitask windows and can send a text when I'm on the phone.
Excruciating.
yosteve said:
Note Edge user here and I am really really trying to wrap my head around not being able to simultaneously talk and be on the net without voLTE.
I mean I can multitask windows and can send a text when I'm on the phone.
Excruciating.
Click to expand...
Click to collapse
Whats excruciating to me is the fact that on my Galaxy Note 4, I could be on a call and surf at the same time on the 4g network. On my Verizon Galaxy Note Edge, I cannot. Thats nuts!
I may have to turn on advanced calling if I want this feature.
I call using Google Hangout dialer. Voice and data works fine like that.
yosteve said:
Note Edge user here and I am really really trying to wrap my head around not being able to simultaneously talk and be on the net without voLTE.
I mean I can multitask windows and can send a text when I'm on the phone.
Excruciating.
Click to expand...
Click to collapse
cbdudek said:
Whats excruciating to me is the fact that on my Galaxy Note 4, I could be on a call and surf at the same time on the 4g network. On my Verizon Galaxy Note Edge, I cannot. Thats nuts!
I may have to turn on advanced calling if I want this feature.
Click to expand...
Click to collapse
It's due to the antenna setup.
In order for voice and data to function simultaneously on Verizon without VoLTE, there has to be two separate antennas - one for CDMA and one for LTE. Some of Verizon's recent devices (such as the Note Edge and Droid Turbo) only have one shared antenna, meaning that only CDMA or LTE can run, not both. It's certainly frustrating for many users, and while Verizon's reasoning for this makes some sense, it's still not great at this time for those who use the feature. With the network moving toward LTE-only with VoLTE, Verizon's reasoning is in part based on this - why include additional hardware at additional cost and space (a second antenna) to run voice and data simultaneously when the same feature can be achieved with one antenna and VoLTE? Of course, VoLTE isn't completely ready for prime time, and they're still working out issues, so for many it's not a true replacement at this point. But that's a big reason why some of Verizon's recent phones can't do simultaneous voice and data without VoLTE - Verizon is trying to pave the way for VoLTE adoption.
Which NEW phones support Voice and Data (WITHOUT) using VoLTE... I have a 2013 Moto X that supports this, and refuse to upgrade until I can find a new device that does support this -- where can I find this data? I would imagine some phone (like a Nexus 5X) might support this since it's not made specifically for Verizon? And before it gets asked, VoLTE is too unreliable for my needs --- when using it on my work iPhone 6S calls drop constantly, so I've had to disable it... but still need voice AND data at once. Any resources / sites listing which devices support this feature would be really helpful.

Simultaneous voice + data on Verizon?

I read there are some issues with the Galaxy S6 and some newer phones on Verizon being unable to do native simultaneous voice + data. I think because of a limit of the # of radios and/or antennas. What can we expect with the 5X on VZW? Thank you!
All new phones can do simultaneous voice and data only with VoLTE or while connected to WiFi. When connected to LTE (and no VoLTE) or 3G data they will drop to CDMA 1X if a call comes in. This is because they only have one antenna pathway and one radio. If they had a separate radio for LTE (like done older phones) it would drain battery almost twice as fast since mobile connection is one of your larger battery users.
Sent from my Nexus 6 using Tapatalk
_Dennis_ said:
All new phones can do simultaneous voice and data only with VoLTE or while connected to WiFi. When connected to LTE (and no VoLTE) or 3G data they will drop to CDMA 1X if a call comes in. This is because they only have one antenna pathway and one radio. If they had a separate radio for LTE (like done older phones) it would drain battery almost twice as fast since mobile connection is one of your larger battery users.
Sent from my Nexus 6 using Tapatalk
Click to expand...
Click to collapse
Ugh, what I feared. How do people do Nav and have phone calls at the same time? Is this going to work with VZW VoLTE on day one? May have made sense to design with two radios and two antennas and only activate the second one when necessary?
hytekjosh said:
Ugh, what I feared. How do people do Nav and have phone calls at the same time? Is this going to work with VZW VoLTE on day one? May have made sense to design with two radios and two antennas and only activate the second one when necessary?
Click to expand...
Click to collapse
Any time LTE is on the second would have to be on, or it wouldn't be able to seamlessly take the call, so that wouldn't have worked.
If your call isn't very long navigation would still work fine, it caches a bit in case of signal drop. The other option would be to download the route ahead of time, Google can do it now I think.
I have a feeling it should have VoLTE though, which would give you voice and data.
http://www.droid-life.com/2015/03/1...e-and-data-now-works-on-nexus-6-with-verizon/
Sent from my Nexus 6 using Tapatalk
_Dennis_ said:
Any time LTE is on the second would have to be on, or it wouldn't be able to seamlessly take the call, so that wouldn't have worked.
If your call isn't very long navigation would still work fine, it caches a bit in case of signal drop. The other option would be to download the route ahead of time, Google can do it now I think.
I have a feeling it should have VoLTE though, which would give you voice and data.
http://www.droid-life.com/2015/03/1...e-and-data-now-works-on-nexus-6-with-verizon/
Sent from my Nexus 6 using Tapatalk
Click to expand...
Click to collapse
Will the same limitations be on each carrier (ie. if I switch to AT&T I still need to use VoLTE for simultaneous voice + data)? Thank you!!
hytekjosh said:
Will the same limitations be on each carrier (ie. if I switch to AT&T I still need to use VoLTE for simultaneous voice + data)? Thank you!!
Click to expand...
Click to collapse
Nope, the way GSM and CDMA works are different. Say you don't have VoLTE and are on an LTE connection. The tower also has a spot for you on HSPDA and GSM if on Tmo or AT&T, or on CDMA if on Sprint or Verizon. If you get a call you fallback to HSPDA or GSM. A similar thing happens on CDMA. The difference is CDMA can't do voice and data on the same connection, GSM and HSPDA can do both.
Sent from my Nexus 6 using Tapatalk
_Dennis_ said:
Nope, the way GSM and CDMA works are different. Say you don't have VoLTE and are on an LTE connection. The tower also has a spot for you on HSPDA and GSM if on Tmo or AT&T, or on CDMA if on Sprint or Verizon. If you get a call you fallback to HSPDA or GSM. A similar thing happens on CDMA. The difference is CDMA can't do voice and data on the same connection, GSM and HSPDA can do both.
Sent from my Nexus 6 using Tapatalk
Click to expand...
Click to collapse
Really wish phones included a Ev radio so this would not be an issue. I wonder if the voice quality/codec on AT&T has improved over the years? Last I used them their voice quality was far inferior to VZW. May be time to consider a carrier switch.
I've not had problems with voice quality, the few times I call on AT&T. They weren't as good as Sprint (their new network has simply amazing voice quality, and data was OK lol).
Mostly I use Google voice via hangouts to make calls, so the network data is more important then voice quality.
Sent from my Nexus 6 using Tapatalk
_Dennis_ said:
All new phones can do simultaneous voice and data only with VoLTE or while connected to WiFi. When connected to LTE (and no VoLTE) or 3G data they will drop to CDMA 1X if a call comes in. This is because they only have one antenna pathway and one radio. If they had a separate radio for LTE (like done older phones) it would drain battery almost twice as fast since mobile connection is one of your larger battery users.
Sent from my Nexus 6 using Tapatalk
Click to expand...
Click to collapse
How new? My S4 gets simultaneous voice/data on lte, but not on 3g. Are you sure you're right about this?
Well, the S4 is not a new phone. And yes I'm certain without advanced calling (or VoLTE) you will not have voice and data on LTE at the same time.
Sent from my Nexus 6 using Tapatalk
Something I'm just realizing...I have a lot of friends and offices that have cell phone amplifier / extender systems that only repeat 3G not LTE. With no 3G radio this phone will be only able to do 1x for voice/data?! I think its also crazy that pure data devices such as the MiFi/personal hotspots still include ability to do EvDo Rev A yet phones don't!
jackdubl said:
How new? My S4 gets simultaneous voice/data on lte, but not on 3g. Are you sure you're right about this?
Click to expand...
Click to collapse
The S4 had extra antennas unlike the newer phones because of VoLTE. The S4 had both radios on at the same time which eats more battery on a call with VoLTE you have improved battery life during a call and do both at the same time. The move was intentional to save costs as well as battery life in the long run.
Sent from my SM-N920T using Tapatalk
I just got my Nexus 5X up and running on verizon. With my Galaxy Nexus I was about to take a phone call while tethering, but can't do that on this phone. Is there a fix for this? It's kind of a bummer because I tether often and take phone calls.
Edit: (12/18/2015) I figured it out. Chatted with VZW tech support to enable HD voice feature, and made sure "enhanced LTE mode" was on in settings. Voice+Data work simultaneously now!
Update: (1/19/2016) I have still intermittently had issues with simultaneously voice+data. I started to wonder if it could depend on who you are calling or what tower you are connected to. I powered down my phone and pulled the sim card for a few seconds, then rebooted and it worked again.

AT&T problem

I'm wondering if anyone else is or has been experiencing this issue. For the last couple weeks my black Pixel 2XL 128gig on Android 8.0 is having a problem switching from LTE to HSPA when trying to make a phone call. I've been on the phone with both Google and AT&T numerous times. ATT deactivated and reactivated my sim card. I ended up getting a new sim card and still didn't fix the problem. Google eventually sent me a brand new phone and I'm still having the same problem. Now Google wants to send me another new phone. I had the original pixel XL on ATT and did not have this issue at all. Anyone else having a similar issue?
Uh... Yes, that's normal, you don't have VoLTE enabled. There's a whole thread about enabling it with AT&T here on the boards. TLR of that thread, download the Oreo 8.1 beta, enable VoLTE in the software, talk to AT&T to enable enhanced voice features.
Sent from my Pixel 2 XL using Tapatalk
You may need a new sim card, I had similar issues, visited an AT&T store and it was fixed within five minutes.
dratsablive said:
You may need a new sim card, I had similar issues, visited an AT&T store and it was fixed within five minutes.
Click to expand...
Click to collapse
I did get a new SIM card. Still was experiencing the same problem. I updated to 8.1 beta to and enabled enhanced LTE to see if that fixes the issue.
JaredC01 said:
Uh... Yes, that's normal, you don't have VoLTE enabled. There's a whole thread about enabling it with AT&T here on the boards. TLR of that thread, download the Oreo 8.1 beta, enable VoLTE in the software, talk to AT&T to enable enhanced voice features.
Click to expand...
Click to collapse
It definitely was not normal. I had a the first pixel XL before this and did not experience this issue.
dutchy716 said:
It definitely was not normal. I had a the first pixel XL before this and did not experience this issue.
Click to expand...
Click to collapse
Then somehow you had VoLTE on your first Pixel. Without VoLTE, the phone will 100% of the time kick back out to HSPA+ when you make a phone call. That's been the case with every phone I've owned prior to VoLTE and actually having a phone that had and made use of VoLTE.
Sent from my Pixel 2 XL using Tapatalk
JaredC01 said:
Then somehow you had VoLTE on your first Pixel. Without VoLTE, the phone will 100% of the time kick back out to HSPA+ when you make a phone call. That's been the case with every phone I've owned prior to VoLTE and actually having a phone that had and made use of VoLTE.
Click to expand...
Click to collapse
I know it's supposed to kick back to HSPA when making a phone call. The problem is that it doesn't. Instead of going to HSPA I lose signal completely. The phone will try to make the phone call and then the phone will manually hang up like I hit the end call button but it does it automatically. Then I either have to toggle airplane mode or reboot the phone to get LTE again.
dutchy716 said:
I know it's supposed to kick back to HSPA when making a phone call. The problem is that it doesn't. Instead of going to HSPA I lose signal completely. The phone will try to make the phone call and then the phone will manually hang up like I hit the end call button but it does it automatically. Then I either have to toggle airplane mode or reboot the phone to get LTE again.
Click to expand...
Click to collapse
Ah ha, your original post didn't make it sound like that. In that case, maybe try a new SIM card?
Edit: Re-read the first post and you already tried a new SIM. Have you tried a SIM from someone else, maybe on another Network to see if it's the phone or the network?
JaredC01 said:
Ah ha, your original post didn't make it sound like that. In that case, maybe try a new SIM card?
Click to expand...
Click to collapse
Ya I got a new SIM the other day. I talked to jcase about it and he believes it's a provisioning issue on AT&Ts end. I was just wondering if anyone else has experienced this and if they found a solution to it. I did end up upgrading to 8.1 beta and that obviously fixed it because of enhanced calling. It's just weird because I haven't found anybody else who has had this problem.
dutchy716 said:
I'm wondering if anyone else is or has been experiencing this issue. For the last couple weeks my black Pixel 2XL 128gig on Android 8.0 is having a problem switching from LTE to HSPA when trying to make a phone call. I've been on the phone with both Google and AT&T numerous times. ATT deactivated and reactivated my sim card. I ended up getting a new sim card and still didn't fix the problem. Google eventually sent me a brand new phone and I'm still having the same problem. Now Google wants to send me another new phone. I had the original pixel XL on ATT and did not have this issue at all. Anyone else having a similar issue?
Click to expand...
Click to collapse
One thing you should always try before going to the provider is a safe mode boot. I tried a new rom and could not get data. Most things worked but no data. I could call and WIFI but no cellular data. In safe mode I got data. That tells you some third party APP is responsible.
JaredC01 said:
Then somehow you had VoLTE on your first Pixel. Without VoLTE, the phone will 100% of the time kick back out to HSPA+ when you make a phone call. That's been the case with every phone I've owned prior to VoLTE and actually having a phone that had and made use of VoLTE.
Sent from my Pixel 2 XL using Tapatalk
Click to expand...
Click to collapse
What does VoLTE have to do having LTE data while on a call? I don't see any reason why you couldn't have LTE available for data even when it doesn't support LTE for voice calls.
I've had LTE switch to H every time I've made a phone call on my Nexus 5, Nexus 5X and Pixel 2 XL. Since 8.1 I've had VoLTE. I know because when I make a call I see the "HD" which is VoLTE but the LTE still switches to H so it seems like the two are related.
jimv1983 said:
What does VoLTE have to do having LTE data while on a call?
Click to expand...
Click to collapse
Uhm, everything? VoLTE is Voice over LTE which implies that you have an LTE radio connection (as opposed to a UMTS/WCDMA/HS*PA radio connection).
jimv1983 said:
I don't see any reason why you couldn't have LTE available for data even when it doesn't support LTE for voice calls.
Click to expand...
Click to collapse
That's because you don't understand the fundamental way in which cellular networks work. Don't feel bad - you're not alone; it's a complicated topic.
The radio on your device can only support one type of radio connection at a time. There are a multitude of reasons for this: capacity on the chip, the need for multiple amplifiers to work simultaneously (because typically carriers use different parts of the radio spectrum for one Radio Access Type than another), antenna capacity etc. Keep in mind that are scenarios in which your device is already juggling quasi multiple radio connects, e.g. carrier aggregation.
Don't get me wrong, there have been devices that supported multiple simultaneous radio access technologies on a single device, but that's because they had multiple radios. These were older devices on IS-95 CDMA carriers such a Sprint when they were pushing WIMAX, and even I believe some Verizon devices which allowed them to do multi-RAB for simultaneous voice and calls before their CDMA infrastructure was upgraded to allow this (and prior to their VoLTE launch). These devices are few and far between.
One last point on this topic: the network handles handover between RATs (though it's possible for the device to only support one RAT). If you were allowed to have simultaneous connections to two radio access types, the network would be juggling twice the resources for your device (the transmit and receive portion of a data connection or call is not the only resource involved). This is yet another reason why in most circumstances you'll never see two simultaneous RATs for one device: it costs the network money. Unless you're trying to cover up for a deficiency is your network architecture (e.g. IS-95 CDMA networks lack of support for multi-RAB. Multi-RAB refers to radio access bearers, basically multiple virtual connections across a single radio link. You might think of this like VLANs on an ethernet network.) you don't put the network and engineering expenses to support multiple RATs..
jimv1983 said:
I've had LTE switch to H every time I've made a phone call on my Nexus 5, Nexus 5X and Pixel 2 XL. Since 8.1 I've had VoLTE. I know because when I make a call I see the "HD" which is VoLTE but the LTE still switches to H so it seems like the two are related.
Click to expand...
Click to collapse
Actually, no. "HD" stands for "HD Voice" which is a better codec. Depending on the carrier, you may get HD voice on a 3G RAT and VoLTE RAT or just on a VoLTE RAT. Keep in mind that HD Voice uses more radio resource than the standard GSM codecs, so there's a trade-off involved here. LTE is more spectral efficient, so offering the higher quality, higher bit rate voice codec on VoLTE has less of an impact on the network than offering it on VoLTE + 3G. So depending on your carrier, they may or may not allow the HD codec on non-VoLTE radio connections. Either way, HD does not in any way shape or form constitute having a VoLTE connection, since it's radio access type independent.
RomPlinker said:
Uhm, everything? VoLTE is Voice over LTE which implies that you have an LTE radio connection (as opposed to a UMTS/WCDMA/HS*PA radio connection).
That's because you don't understand the fundamental way in which cellular networks work. Don't feel bad - you're not alone; it's a complicated topic.
The radio on your device can only support one type of radio connection at a time. There are a multitude of reasons for this: capacity on the chip, the need for multiple amplifiers to work simultaneously (because typically carriers use different parts of the radio spectrum for one Radio Access Type than another), antenna capacity etc. Keep in mind that are scenarios in which your device is already juggling quasi multiple radio connects, e.g. carrier aggregation.
Don't get me wrong, there have been devices that supported multiple simultaneous radio access technologies on a single device, but that's because they had multiple radios. These were older devices on IS-95 CDMA carriers such a Sprint when they were pushing WIMAX, and even I believe some Verizon devices which allowed them to do multi-RAB for simultaneous voice and calls before their CDMA infrastructure was upgraded to allow this (and prior to their VoLTE launch). These devices are few and far between.
One last point on this topic: the network handles handover between RATs (though it's possible for the device to only support one RAT). If you were allowed to have simultaneous connections to two radio access types, the network would be juggling twice the resources for your device (the transmit and receive portion of a data connection or call is not the only resource involved). This is yet another reason why in most circumstances you'll never see two simultaneous RATs for one device: it costs the network money. Unless you're trying to cover up for a deficiency is your network architecture (e.g. IS-95 CDMA networks lack of support for multi-RAB. Multi-RAB refers to radio access bearers, basically multiple virtual connections across a single radio link. You might think of this like VLANs on an ethernet network.) you don't put the network and engineering expenses to support multiple RATs..
Actually, no. "HD" stands for "HD Voice" which is a better codec. Depending on the carrier, you may get HD voice on a 3G RAT and VoLTE RAT or just on a VoLTE RAT. Keep in mind that HD Voice uses more radio resource than the standard GSM codecs, so there's a trade-off involved here. LTE is more spectral efficient, so offering the higher quality, higher bit rate voice codec on VoLTE has less of an impact on the network than offering it on VoLTE + 3G. So depending on your carrier, they may or may not allow the HD codec on non-VoLTE radio connections. Either way, HD does not in any way shape or form constitute having a VoLTE connection, since it's radio access type independent.
Click to expand...
Click to collapse
My Pixel 2 XL does VoLTE on AT&T. "HD" might have different meanings in different cases but in this case the "HD" does mean VoLTE. Google specifically stated that in release notes for 8.1 on the Pixel 2 XL.
Also, back when I had a Galaxy S2 Skyrocket (AT&T's LTE variant of the Galaxy S2 and its first LTE phone) back in late 2011 it didn't do VoLTE but it did allow LTE data while a voice call was in progress.

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